Principal / Senior Staff Software Engineer ( 5G PHY )

Globalstar Inc. Updated; San Diego (CA); On-site; USD 190,000 - 270,000; Full time

Benefits offered by this job

PTO & Holidays

401(k) with Company Match

Employee stock purchase program

Disability insurance

Health insurance

Dental insurance

Vision insurance

Wellness program

Job summary

Globalstar Inc. in San Diego is seeking a Principal / Senior Staff Software Engineer for the 5G PHY domain. You will lead a high-performing team developing the next generation of high-throughput wireless systems.

You will architect, design, develop, and code major features, mentor the software team, and collaborate with systems, design and test groups to validate new 3GPP concepts. This is an on-site role requiring a strong background in C/C++, real-time Linux, and PHY development, with

Qualifications

• 10+ years of hands-on software development experience in C/C++.
• 7+ years of software/algorithm development for PHY (L1) 5G or LTE wireless systems.
• 5+ years experience developing software for real-time Linux systems.
• Experience taking complex software from concept to finished, customer-ready products.
• Strong mentoring and team leadership abilities.

Responsibilities

• Lead a high-performing software team to design and implement next-generation high-throughput 5G NR components.
• Architect, develop, and code major system features and ensure scalable performance.
• Mentor engineers, improve development processes, and collaborate with cross-functional teams.
• Integrate and validate novel 3GPP concepts with design and test groups.

Skills

C/C++

5G/LTE PHY algorithms

Real-time Linux

Software architecture

People leadership

Education

Bachelor's degree in Computer Science or Engineering

Master's degree (preferred)

Job description

Principal / Senior Staff Software Engineer ( 5G PHY )

Job Category: Web & Software Development

Requisition Number: PRINC001669

• Posted : August 20, 2026
• Full-Time
• On-site

Locations

Showing 1 location

Description

Globalstar (NASDAQ: GSAT) is a leading provider of mobile satellite and terrestrial connectivity solutions with a comprehensive connectivity ecosystem, including XCOM RAN, its software-defined private wireless platform purpose-built for mission-critical network communications.

XCOM RAN delivers a next-generation Radio Access Network platform designed to deliver secure, high-performance private wireless connectivity for enterprises and government organizations. XCOM RAN has an advanced software-defined architecture and enables the creation of wide-area “Supercells” that eliminate handoffs and optimize throughput. The solution is engineered for mission-critical environments where reliability, scalability, and low-latency performance are essential, from smart logistics and industrial automation to defense, emergency response, and more.

What you will be doing at XCOM RAN by Globalstar

As a Principal / Senior Staff Software Engineer, you will lead a high performing team of software and engineers developing the next generation of high throughput 5G NR wireless systems. This will included architecting, designing, developing, and coding major system features. You will guide and mentor the software team, innovate and improve software development processes, and work with cross function engineering teams. Also, you will work with systems design and test teams to integrate and validate novel 3GPP wireless technology concepts.

What you will bring to Globalstar

• Bachelor’s degree or higher in Computer Science, Computer Engineering, or closely related field
• 10+ years of recent and hands-on software development experience with C and/or Modern C++
• 7+ years of experience software and algorithm development for PHY ( L1 ) 5G or LTE wireless systems
• 7+ years of experience taking complex software from concept to finished custom ready products
• 5+ years of experience developing software for real-time Linux systems

It’s a bonus if you have:

• Master's or higher in Computer Science, Computer Engineering, or closely related field
• Networking concepts, protocol, and networking tools (e.g., Wireshark, tcpdump)
• Debugging techniques for real-time software applications

Physical Requirements:

• Prolonged periods of sitting at a desk and working on a computer

Marginal Functions:

A review of this job description may have omitted some of the marginal functions of the position that are incidental to the performance of the job duties and responsibilities. This job description, in no way, states or implies that these are the only duties and/or responsibilities to be performed by the employee in this position. The employee in this position will be required to follow any other job-related instructions and to perform any other job-related duties requested by his/her supervisor.

Skills and Competencies:

• Excellent verbal and written communication skills, including the ability to interact clearly and concisely with all departments and levels of management
• Excellent organizational skills with attention-to-detail
• Ability to meet multiple deadlines in a fast-paced environment
• Ability to effectively manage time and prioritize tasks
• Ability to act with integrity, professionalism, and confidentiality
• Proficiency with Microsoft Office
• Familiarity with NetSuite
• Strong problem-solving skills, especially under time constraints
• Ability to identify and seek needed information

What Globalstar offers:

• Work/Life Balance: Paid Time Off, Paid Holidays
• Financial Benefits: 401(k) Plan with Company Match, Employee Stock Purchase Program, Voluntary and Company Paid Group Life Insurance, Short- and Long-Term Disability Insurance, Medical FSA, Dependent Care, Competitive Salaries
• Health & Wellness: Health Insurance, Dental Insurance, Vision Insurance, Employee Assistance Program, Comprehensive and Interactive Wellness Program

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.For further information, please review the Know Your Rights notice from the Department of Labor.